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用离心水泵抽水,当液位低于泵轴时,开泵前必需先充水。充水的方法很多,常用的有真空引水,吸水管设底阀灌水,引水水箱灌水等。对于中小水泵,采用一种水泵自吸缶是很简单方便的自动充水方法,尤其对抽吸污水更为合适,该种引水方法,国内外一些工厂已实际应用。现特介绍之。
Use a centrifugal pump to pump water. When the liquid level is lower than the pump shaft, it must be filled with water before starting the pump. There are many ways to fill water, commonly used vacuum suction, suction pipe bottom valve filling water, irrigation water tank irrigation and so on. For small and medium-sized pumps, the use of a self-priming pump is a very simple and convenient method of automatic water filling, and is particularly suitable for pumping sewage. This type of water diversion method has been applied in some factories at home and abroad. This is specifically introduced.